Rivet-cutter and punch.



PATBNTBD JAN. 7, 1908.

C. H. LAU.

RIVET CUTTERA AND PUNCH.

APPLIGATION FILED JUNE 4,1907.

5 SHEETS-SHEET l.

,my f,

No. 870,000. PATENTBD JAN. 7, 1900.

' 0. H. LAU.

RIVBT GUTTER AND PUNCH.

APPLICATION FILED J INE 4.1007.

5 SHEETS-SHUT z.

attenua? No. 876,068. PATBNTED JAN. 7, 1908. 0. H. LAU.

RIVBT GUTTER AND PUNCH.

APPLICATION FILED JUNE 4,1907.

5 SHEETS-SHEET 3.

Wi b1 moes No. 876,068. PATENTED JAN. 7, 1908. 0. H. LAU.

RIVET CUTTER AND PUNCH.

APPLICATION FILED .TUNE 4.1907.

5 SHEETS-SHEET 4.

AF'z'y Fapi? 61H0: um)

No. 876,068. PATENTED JAN. '7, 1908.

C. H. LAU. RIVET GUTTER ANDPUNCH.

APPLICATION FILED JUNE 4,1907.

5 SHEETS-SHEET 5.

9mm @2V/w. 1M/MW., W60 SHOW,

UNITED STATES PATENT OFFICE.

CONRAD H. LAU, OF RENOVA, PENNSYLVANIA, ASSIGNOR OF ONE-FOURTH TO HERBERT A. CARLTON, OF HARRISBURG, PENNSYLVANIA.

RIVET-CUTTER AND PUNCH.

Specification of Letters Patent.

Patented Jan. 7, 1908.

Application iiled June 4. 1907. Serial No. 377,192.

To all whom t may concern:

Be it. known that I, CONRAD H. LAU, citiren of the United States of America,ll residing at Renova, in the county of Clinton and State of Pennsylvania, have invented certain new and useful Improvements in Rivet-Cutters and Punches, of which the following is a specification.

This invention relates to new and usefulimprovements in rivet cutters and punches and has relation more particularly to that class of machines employed in construction of a steel oar, although of course it is to be understood that it can be employed for any purpose for which it is applicable.

It is anobject of theinvention to provide a novel device of this character which is operated by a fluid means, said fluid means controlling two cutters movable one with relation to the other.

It is also an object of this invention to provide a novel arrangement in a device of this kind whereby the operator is protected Vfrom the ilying of any of the rivet heads when cutting.

It is also an object ,of this invention to provide novel means in a device of this character whereby the machine may be adjusted in its positions, either horizontal, vertical or on an angle of 45.

The invention also has for an object to provide novel means whereby the ,machine is forced `or held against its work when it is desired to obtain a eut.

Furthermore, it is an object of thisinvention to provide a novel arrangement whereby the means for forcing the machine in contact with its work would be operated simultaneously with the operation of the cutters.

l `urthermore, the invention has for an object to provide a novel bracing means to be employed in conjunction with the machine.

A 'further object of the invention is to provide in a device of the character described, a cutting mechanism, a work engaging mechanism and an ejecting mechanism, all operating by fluid pressure and controlled by a single valve.

Finally, an object of the invention is to provide a novel device of .the character noted, which will possess advantages in points of simplicity', c'l'liciency and durability, proving at the same time comparatively inexpensive to manufacture.

With the foregoing and other objects in view, the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully set 'forth and claimed.

In describing the invention in detail, refer- Aence will be had to the accompanying drawings forming part of this speciiication wherein like characters denote corresponding parts in the several views, in which- Figure 1, is a top plan view of the invention with parts omitted. Fig. 1, is a sectional view taken on the line indicated in Fig. 1. Fig. 2, is a side elevation, partly in section with parts omitted. Fig. 3, is a view in front elevation, partly in section of the invention with parts omitted. Fig. 4, is a detail view of a clamp emploved in the vinvention. Fig. 4, isa view infront elevation of the clamp. Fig. 5, is a view in top lan with parts of the invention omitted. Ti@ 6, is a view in side elevation with parts omitted. Fig. 7, is a detail View. Fig. 8, is a View in elevation of one form of punch employed in conjunction with this invention. Fig. 9, illustrates a second iorm of unch. Fig. 10, is a detail view oi' a modifie( form. Fig. 11, is a detail view in elevation of the clamping means, said clamping means being shown in operative position. Fig. 12, is a detail sectional view of the clamp. Fig. 13, is an enlarged detail view of the cutters said cutters being shown in position at right angles to that shown in Fig. 1.

In the`drawings 1, denotes a cylinder of any desired size or form, but preferably a 10 cylinder, which is in communication with the three-way valve 2, through the medium of the pipes Operated within the cylinder 1, is the piston head 4, provided with the rod 5, which projects rearwardly of the cylinder.

Formed with the front head 6, of the cylinder is a lug or protuberation 7, which is arranged approximately centrally oi said head (3. To this lug`7, is fastened by means of the bolts S, a bracket 9, which has secured on both sides the plates 10. These plates 10, are approximately T-shapcd and the stems thereof are secured to the bracket by the bolt 11, which passes through said stems and bracket.

Between the )lat/eelt), and adjacent the ends ol" the heads thereof are fulcrun'ied the cutter arms 12, which extend beyond the rear of the cylinder 1, and have pivoted at tend 1n advance of the lates l0, andtheir o' posed Walls are rovi ed with sockets 16, W ich are engage by the Shanks 17 of the cutters 18. -The Shanks 17, are held within.

thel sockets 16, by the clamping screws 19, While for convenience of illustration, the cutters 18, have been shown as cutting from the front of the arm, it is to be stated that these cutters can be em loyed with equal facility if adjusted to cut om the top of the arms or from below the arms. To accomplish this, the shape of the cutters and the adjustment in the cutter sockets will be made. accordingly.

"It is believed that from vthe foregoing description it is clearly ap arent that when the plstonrod 5, is force( downward, this movement of the rod through the lmedium of the short arms 13, will rock the cutting arms 12, on their ivots 20, with suflicient force as to cause tide cutters 18, to clip the heads of the rivets when the machine is inV ing its lower or free .end 46', inclined or applied or operative position.

eld to the under surface oll the cylinder 1, by the clamps 21, is a bail 22, which is approximately semi-circular in form and it is the flattened or straight portion that isengaged by the clamps 21. Said clamps, it may be stated, also engage the lugs 23, on the under surface of the cylinder. It is also to be observed that the cylinder 1, is within the bail and 'approximately centrally of the straight ortion. v

Movab e on the bail 22, is a sheave 24, which is provided with a roller 25, which engages the under surface of the bail 22. It is through the medium of this sheave 24, 'and bail 22 that the cylinder 1,L or the machine is heldin its operative position. A The sheave 24, is adapted to be engaged by a flexible lconnection 26, which operates in conjunction with a crane or other hoisting mechanism (not shown). By this arrangement the machine can be elevated or lowered to any cylinder 1., 1s the bracket 28. l is of sufficient length as to project beyond desired position. It is alsooften desired and required that the angle of the cutters.

with relation to the rivet to be cut be' changed. This is easily effected by moving the bail 22 in the desired direction through. the sheave 24.

` Projecting from the rear head 27,' of the This bracket the end of the cutter .arms 12, and their intimate parts. Carried by the end of this bracket 28, is a small cylinder 29, which operates thepisfton4 30. This iston has its outer end-31, bifurcated an( within this bifurcation is mounted on the bolt or shaft 31, a pulley 32'.' `This pulley 32, is engaged by a cable 33, which is fastened tozthe top and bottom of the car on which the machine is to be employed. 4

' The cylinder 29, is in communication with the supply pipe 42 and the passage of the fluid through this pipe 34, is controlled by the valve 36. When the fluid is admitted -within the cylinder 29, the machine or the contacting with the interior face or surface 'of the car at the top while the foot of the clamping lever Vcontacts with the exterior surface of the car, the car being indicated in Isection in Fig. 4. Adjacent the top of the body 43, is pivoted a straight lever 45, havbeveled to contact with the stem of the clamping lever 44. Straddling the stem of the body- 43, isa fork 47, which is pivoted near its free ends tothe lever 45, by a bolt 48, which passes through yboth members of the fork and the lever. The' head 49, of the bolt acts as a clamping member. as Will be hereinafter referred to.1 Carried by the lever 45, is a bracket 50, which extends over one of the members of the fork 47, and this bracket is provided with a clamping screw 51, w hich acts' in conjunction with the head 49. l The head of the fork is provided with a passageway which terminates at one side of the fork adjacent the base of 011e of the niembers and through this passageway asses the cable or rod 33 hereinbefore re erred to. This cable is placed between the head 49, and the clamping screw 51. [Vl-Then pressure is exerted on the piston Within the cylinder 29, and the rod 30, extended, this movement will pull or stretch the cable and this movement of the cable will pull or force the lever 45, in contact with the clamping arm 44, and thereby hold the clamping member 35, to the car, and it is to be observed that the lgreater the pressure on the cableA 33, the

more efficient the clamp. ltjis also to be stated that it is essential that the cable 33, pass centrally of the fork so that vthe cable 33, may be held in proper position with relation to the machine proper, as is shown. in detail Fig. 12.

The free end of the piston 30, has clam )ed thereto a hand hold 37, which in practice ias been found desirable, as it presents a means for the operator to move the machine as may be desired. 1t may also be stated that the cable 33, could be dispensed with and this hand hold 37 of the piston be brought in contact with any stationary body possessing suflicient resistance. j

'Projecting 'upward from the stem of the upper plate l0, on a forward incline and held to the stem by the bolt 11, hereinbefore referred to is a clamp 38, whi(Y h holds 'in position a fluid operated hammer 39, which is in 'communication with the supply pipe 42, hereinbefore referred to. This hannier may be of any ordinary or desired construction, but it, has been found preferable to employ the form 'of punches shown in Figs.' S and 9. In Fig. 9, is shown a straight tapered punch 54, while in Fig. S, is illustrated a punch 55, approximately T-shaped having projecting forwardly from one of the ends of the head the tapered extension 56. This latter form of punch is to be employed when it is desired to ejectI rivets directly in front of or in alinement with the cutters 13.

Whenthe valve 2, is turned to retract the piston rod 5, the hammer 39, is made operative in the well known manner and this hamm'er is .so positioned as to contact with the rivet that has been headed to force or eject thesame. -Held by the pivots 20, and the upperplate 10, is a guard plate 40, whichextends on an incline over the cutters 18, and is intended to prevent any of the heads that may be cut from iiying into coni act with the operator. This plate 40, is provided with an aperture 41, through which extends the hammer 39.

It has been previously stated that4 the cutters 18 are adjustable within their sockets. This adjustment is permissible in view of the fact that the Shanks 16, are cylindrical and thereby permit the cutters 18, to be turned to any desired angle with relation to the arms 12, shown in detail Fig. 13. I/Vhile under certain conditions, it may be necessary to slightly change the specific form` of cutters .toothe proper, it is not, however, believed necessary to i lustrate these forms, as they will depend upon the requirements of practice. n

In order that there .may be no lost motion of the arms 12, in their movement upon their pivots, the o posed semi-circular recesses. 52, are former 1n the opposite edges of the arms 12, and tightly fitting within these recesses is the cylindrical roller 53. This roller53 has been found in practice most essential and will not in any way interfere with the operation or movement of the arms 12, on their pivots. While the employment of this roller 53, is the desired or preferred form, the opposed edges of the arms 12, may be or` milled to intermesh as is shown in the modified form Fig. 10. It has also been found in practice that the roller 53, prevents any longltudinal movement of either of the arnis 12, with relation to the other and thereby maintains the cutting edge of the cutters 118, in their proper operative relation.

vWhat I claim 1s:

1. In combination with a cylinder and its piston rod, arms pivotally held by the cylinder projecting beyond the ends thereof, cutters carried by the forward ends of the arms and connections between the rearward ends of the arms and the piston rod whereby movement of the piston rod imparts movement to the arms.

2. In combination with a cylinder and' its piston rod, arms pivotally held bythe cylinder projecting beyond the ends thereof, cutters carried by the forward ends of the arms, connections between the rearward ends of the arm-s and the piston rod whereby movement of the piston rod imparts movement to the arms, and means for suspending the cylinder.

3. In combination with a cylinder and its i iston rod means for su ortiner the c linder, arms pivotally held` by the cylinder and projecting beyond both ends thereof, cutters carried by the forward ends of the arms, connections between the rearward ends of the arms and the piston rod whereby movement lof the piston rod imparts movement to the arms, and means for moving the cylinder on its support.

A1.v In 'combination with a cylinder and its piston rod, arms pivotally held by the cylinder projecting beyond the ends thereof, cutters carried by the forward ends of the arms, connections between the rearward ends of the arms and the piston rod whereby movement of thepiston rod imparts movement to the'arms, a ba'il carried by the cylinder, and

means engaging the bail for supporting the cylinder.

5. In combination with a cylinder and its piston rod, arms pivoially held by the cylinder, cutters carried by the arms, connections between the arms and the piston rod whereby movement of the piston rod imparts movementl lo the arms, a bail carried by the cylinder, and a sheave engaging the bail for supporting the cylinder.

6. In combination with a cylinderand its piston rod,a lug on the closed end of the cylinder, pivoted arms carried by the lng projecting beyondthe ends of the cylinder, cutters on the 'forward ends of the arms, and connections between the rearward ends of the armsand the piston rod whereby a movement of the rod will impart movement to the arms.

7. In combination with a cylinder and its piston rod, a lug on the closed end of the cylinder, a bracket secured to the lug, arms pivotally carried by the bracket projecting beyond the ends of thi` cylinder, cutters carried by the forward ends ol' the arms, and connections between the rearward -ends ol the'arms.- v 8. In combination with a cylinder and its piston rod, a lug on the closed end of the cylthe arms and the piston rodwhereby movement ,of the piston rod imparts movement to inder, a bracket .secured to the lug, plates secured to the opposite faces of the bracket, arms pivotally held'between the plates, cutters on the arms, and connections between the arms and the piston rod whereby movement of the piston rod impar-ts movement to the arms. 9. In combination, a cylinder, va 4cutting means made operative thereby, and a clamping means made operative by the cylinder.

10. In combination with a cylinder and its piston rod, cutting means. carried by the cylinder operated by the pistonrod, a second cylinder carried-by the iirst named cylinder,

and a piston rod operative within the second name(l cylinder and projecting therefrom.

1 1. In combination with a cylinder and its -piston rod, cutting means carried by the cylinder operated by the piston rod a second cylinder carried by the first named cylinder, a piston rod operative within the second named cylinder and projecting therefrom, and a roller carried'by the piston rorlof the second named cylinder.

12. In combination with a c -linderfand its piston rod, cutting means carried by the cylinder operated by the piston rod, a second cylinder carried -by the first named cylinder, a piston rod operative within the second named cylinder and projectingtherefrom,

and a hand grasp carried by thel piston rod of the second named cylinde 13.l In combination with a cylinder and its piston rod, arms pivotally held by the cylinder, cutters carried by the arms, connections between the'arms and the piston rod wherebymovement of the piston rodimparts movement tothe arms and aguard plate arrangedl adjacent the cutters. v Y

14. In combination with a-cylinder and its piston rod, a lug on the closed end of the cyl- Inder, a bracket secured to the lug, plates secured to the o posits faces of the bracket, arms pivotally eld between the plates, cutters on the arms, connections between the arms and the'piston rod, whereby movement of the piston rod imparts movement to the arms, and a guard plate secured to one-of the plates adjacent the cutters. f v

15. In combination with -a cylinder and its piston rod, arms-pivoted one with relation to the other, cutters carried by the arms, connections between the arms and vthe piston rod, whereby movement of the piston rod imparts movement tothe arms, and a guard arranged adjacent the cutters.

16.4 In combination with a cylinder, cutting means madeoperative bythe cylinder, a

.second cylinder carried by the first named cylinder, and a piston rodv operative within the second named cylinder and projecting therefrom.

17: In combination, a cylinder, a cutting means made operative thereby, means for imparting movement to the-cylinder, and a. clamping means made operative by a movement of the cylinder.

18. In combination with a cylinder and its piston rod, cutting means carried by the cyl- Inder operated by the iston rod, a second cylinder carried by the rst named cylinder, a piston rod operative within the second named cylinder and projecting therefrom, and a clamping means made operative by a movement of the second named iston rod.

19. In'combination with a cy inder and its piston rod, arms pivotally held by the cylinder, means for preventing any longitudinal movement of one of the arms independent of the other, connections between the arms and, the piston rod whereby the movement of the piston rod imparts movement to the arm, a bail carried by the cylinder, and a sheaveengaging the bailfor supporting the cylinder.

20. In combination with a cylinder, cutting means made operative by the cylinder, a second cylinder carried by the first named cylinder and positionedto the rear thereof, and a piston rod operativel within the second named cylinder and projecting therefrom.

' 21. In combination with a cylinder, cutting means made operative by the cylinder, a

'bracket carried by the cylinder, a second cylinder carried by the bracket, anda piston rod voperative Wit-hin the second named cylinder and projecting therefrom.

22. In combination with a cylinder, cut-v ting means made operative by the cylinder, a second cylinder carried by the first named cylinder, a piston rod operative Within .the second named cylinder and projecting therefrom, a clamping means, anda ieXible means engaging the clamping means contacte'd with by the second named piston rod.

23. In combination with a cylinder, cutting means made operative by the cylinder, a second cylinder carried by the first named cylinder, a pistonrod operative within the second named cylinder and projecting there-` from, a roller carried by the piston rod of the second named cylinder, and a hand gras carried by Athe iston rod' of the secon named cylinder a jacent the roller.

In testimony whereof I aiix mysignature in the presence of two witnesses.

HERBERT A. CARLTON, WILFRED E. LAWSON. 

